Port-Security again! - pls reply!

When setting up port-security and not using the 'sticky' options, the mac addresses will be saved on the switch as 'securedynamic' . If I unplug this device, should the mac address continue to be resident on the switch, thus keeping the port safe, or will it be deleted.

Replies

Dynamic secure mac-addresses are stored in the address table and if you restart the switch it should not be there when the switch restarts. It can't be there because the switch stores them in it's memory while in operation unlike the sticky option which allows you to store them in the running-config.

I know from painful experience that this should work as at the last place i worked we had users who continually were changing which PC was connected into the switch port and it was always locking them out.

Have you tried plugging in another machine after unplugging your mac.

I will have another look at config and if i get time today or tomorrow i have a 3550 laying around i could run a few quick tests on.

I have been trying to get this to work for a few days now and can only get it to work with 'sticky' addresses. This is not of any use to me because I have some ip phones using the voice vlan. The voice vlan only supports secure dynamic addresses.